Counter



Dec. 20, 1938. M. M. HENNEWSY COUNTER Filed Jan. 28, 1937 3 Sheets-Sheetl Dec. 20, 1938. M. M. HENNESSY 2,140,839

COUNTER Filed Jan. 28, 1937 3 Sheets-Sheet 2 ATTORNEY Dec, 20, 1938. M.M. HENNsSY COUNTER Filed Jan. 28, 1957 3 Sheets-Sheet 3 INVENTOR.

ATTORNEY.

'UNITED STATES PATENT OFFICE COUNTER` Mark M. Hennessy, Milwaukee, Wis.,assigner to Durant Manufacturing Company, Milwaukee, Wis., a corporationci.' Wisconsin Application January 28, 1937, Serial No. 122,781

6 Claims.

The present invention relates generally to improvements in the art ofcounting the number of operations performed or the quantity oi materialused by certain mechanisms such as cloth weav- 5 ing or coil windingmachines, and relates more specifically to improvements in theconstruction and operation of counters of the type which may be set toregister a predetermined number of operations and which are adapted tocontrol the actuation of a signal or of allied machines when thepredetermined count is reached.

In general, an object of my present invention is to provide an improvedcounter which is adapted to accurately regisr a succession of operationsor events by true subtraction of successive units or groups of unitsfrom a predetermined number, and which is moreover capable of eifectingrapid and accurate indication of the completion of the predeterminedcount.

It has heretofore been attempted in the art of weaving with the aid oflooms or the like, to register the length of the woof or pick threadused, with the aid of counters which were intended to be initially setto indicate any desired or predetermined number of total operations ortransverse thread lengths, and which were subsequently automaticallyoperable by the loom to subtract the successive individual weavingopera' tions from the selected number until the total count had beenconsummated. In an endeavor to give some indication as by a signal or bystopping of the weaving operation upon completion of the initiallyselected count, these prior predetermined subtraction counters weresometimes t 3 provided with tripping mechanisms which either operated asignal, or mechanically stopped the machine, or actuated an electricswitch which controlled the stop mechanism. None of the commercialpredetermined subtraction counters heretofore proposed, are commerciallysatisfactory when absolutely accurate subtraction is essential, sincethey are so constructed that no iixed relationship exists between thenumeral bearing members and the transfer teeth which coact with thetransfer gears of the higher order counter wheels through transferpinions. This lack of fixed relationship between the numeral bearingmember and the transfer tooth of each counter wheel, permits the numeralmember and the corresponding transfer tooth to be relatively shifted,with the result that the intermediate count will be inaccurate.

My present invention therefore contemplates provision of a truesubtraction counter assemblage provided with improved predetermining(Cl. 23S- 139) number wheels which are adapted to accurately registerthe successive units and groups of units subtracted from the selectedtotal, and also hav ing improved automatically functioning tripping orindicating mechanism for designating the completion of the calculatingoperation.

A more specific object of the invention is to provide an improvedcounter wheel assembly which is simple and durable in construction,which may be readily manufactured and associated with similar wheels,and which is highly efficient and reliable in operation.

Another specific object of the invention is the provision of an improvedcounter wheel structure which is especially adapted for use as part of atrue subtracting predetermined counter assemblage, and which has itsnumeral bearing member rigidly connected to its transfer tooth therebyinsuring absolutely accurate performance.

A further speciilc object of my present invention is to provide new anduseful power actuated tripping mechanism for automatically indicatingwhen a predetermined total count has been completed, and which isaccurate and positive in operation.

Still another specific object of my invention is the provision ofimproved electric switch mechanism especially cooperable with apredetermined subtracting counter assemblage to indicate the completionof a selected number of individual counts by either operating a signalor by arresting the operation of the machine with which the counter isassociated.

An additional specific object of the invention is to provide an improvedcounter assembly which is extremely compact in construction and which isreliable and accurate in operation even under most adverse conditionssuch as violent jarring and vibration.

Still another additional specic object of -x'ny invention is theprovision of a counter mechanism which may be conveniently re-set andwhich may` be manufactured and sold at moderate cost.

These and other objects and advantages of the improvement will beapparent from the following detailed description, and the presentinvention constitutes a continuation in part of my earlier applicationSerial No. 23,645, led May 27, 1935, relating to predetermined counters,and especially to improvements in subtracting wheel assemblages for suchcounters.

A clear conception of the features constituting my present invention,and of the mode of constructing and of utilizing counters built inaccordance therewith, may be had by referring to the drawingsaccompanying and forming a part of this specification wherein likereference characters designate the same or similar parts in the variousviews.

Fig. 1 is an elevation of one of the improved predetermined truesubtraction counters having five number wheels, with the closure coverremoved and having a portion of the front structure broken away so as toreveal normally concealed structure;

Fig. 2 is a transverse vertical section through the counter assemblageof Fig. 1, taken along the line 2-2 and looking toward the left; thefingers of the movable transfer pinion support being disengaged from thenotches of the counter wheel inserts as when the assemblage is operatingnormally;

Fig. 3 is a similar section through the assemblage, showing the insertlocking fingers of the transfer pinion support engaging the notches ofthe insert;

Fig. 4 is another transverse vertical section through the counterassembly, taken along the line 4-4 of Fig. 1 and looking toward theright;

Fig. 5 is still another transverse vertical section through theassemblage, taken along the line 5 5 and looking toward the left;

Fig. 6 is an enlarged end view of one of the combined digit bearing andcam rims, lock portion, and transfer teeth, looking toward the transferteeth and showing the supporting shaft in place;

Fig. 7 is a part sectional front view of the unltary assemblage of Fig.6, also showing the supporting shaft in place;

Fig. 8 is an opposite end view of the unitary structure of Figs. 6 and7, showing the internal construction thereof and likewise showing thesupporting shaft in place;

Fig. 9 is a similarly enlarged end view of one of the inserts which arenormally disposed within the assemblages of Figs. 6` to 8 inclusive,looking toward the pawl side thereof and again showing the supportingshaft in place;

Fig. l is a part sectional front View of the insert of Fig. 9, showingthe supporting shaft disposed therein;

Fig. 11 is an opposite end view of the insert of Figs. 9 and 10, showingthe interior thereof and having the supporting shaft disposed therein;

Fig. 12 is a likewise enlarged end view of one of the transfer gears andpawls, showing the supporting shaft in place and also having an insertapplied thereto in dot-and-dash lines.

Fig. 13 is a front view of a completely assembled number wheelcomprising the elements of Figs. 6

l to 12 inclusive;

Fig. 14 is a still further enlarged central vertical section through theassemblage of Fig. 13 with the supporting shaft shown therein;

Fig. 15 is a transverse vertical section through the end of a counterassemblage, showing a modied type of tripping mechanism; and

Fig. 16 is a rear View of the mechanism of Fig. 15, showing the samecooperating with an improved electric switch.

While the invention has been shown and described herein as beingspecifically applied to a true subtraction counter applicable fordiverse purposes, it is not the intent to thereby unnecessarily restrictthe scope or adaptation of the present improvement.

Referring to the drawings, the improved counter assemblage shown inFigs. 1 to 5 inclusive, comprises in general a main support or frame I8having opposite end walls I 9, 20; a power operated drive shaft 2|journaled near the lower portion of the frame |8 and having a worm 22secured thereto near the end wall 28; an inclined transmission shaft 23journaled in the frame |8 near the end wall 20 and having a worm wheel24 meshing with the worm 22 and also carrying a worm 25; a reset orcounter wheel supporting shaft 26 supported for manual rotation withinthe end walls I8, 28 and having a worm wheel 21 rotatable thereon andmeshing with the worm 25; a lowest order counter unit or wheel 28located directly adjacent to the worm wheel 21 and rotatable therebyabout the shaft 26 in one direction by means of a well known type ofmotion transmitting ratchet mechanism 28; a series of similarprogressively increasing higher order wheels 30 also rotatable with andabout the supporting shaft 26; a pinion supporting shaft 3| movablysupported upon a carrier yoke or member 32 which is swingable about apivot 33 toward and away from the shaft 26 and wheels 28, 30; a seriesof specially constructed transfer pinions 34 rotatably mounted upon thesupporting shaft 3| and being adapted to intermittently transmit rotarymotion from the lower order wheels 28, 30 to the adjoining higher orderwheels during normal power operation of the counter; and a series of camengaging rollers 35 rotatably supported upon a shaft 38 which is carriedby a roller yoke 31 swingably suspended from the pinion shaft 3|.

The improved construction of the counter units or wheels 28, 30 whichconstitutes an important part of this invention, is shown in detail inFigs. 6 to 14 inclusive, and each of these wheels comprises a one-piececam and number or digit bearing rim 38, and a locking rim 3S, and twotransfer teeth 4|), all of these being permanently and rigidly unitedand rotatably supported upon the shaft 26; an insert 4| normallydisposed concentrically Within the cam and digit rim 38 and having onone side thereof two spring pressed pawls 42, 43, of which the pawl 42is cooperable with an annular series of notches 44 formed within the rim38 while the pawl 43 is cooperable with a V-groove 45 formed in thesupporting shaft 26, the insert 4| also being provided with an annularseries of peripheral recesses 46 located beyond the open end of the rim38 and having an annular series of internal notches 41 therein; and atransfer gear 48 mounted upon the central hub of the insert 4| at therecessed end thereof and meshing with the adjacent transfer pinion 34which normally is also adapted to mesh with the transfer teeth 48 of acounter' wheel of lower order, the transfer gear 48 having springpressed pawls 48 engageable with the insert notches 41 so as to impartrotation to the insert 4| in one direction. v

Each of the digit bearing rims 38 has a local cut-out or cam recess 50and a series of numerals ranging from zero to nine, and the transferteeth 48 and cam recess 50 of each unit are constantly located in 'thesame predetermined position with respect to the same number 5I on therim 38 thereof. The numbers 5|, the recesses 48. and the notches 44, 41are equally spaced around the axis of the number wheels, and the lockingrim 39 of each wheel has a recess adjoining the teeth 40 of thecorresponding wheel assemblage, which under certain conditions iscooperable with elongated teeth on the adjacent transfer pinion 34 so asto lock the digit rim 38 of a lower order wheel to the transfer gear 48of the adjoining 75 higher order wheel. The recesses 49 of the inserts4I are engageable by fingers 52 formed inmore tension springs 53coacting with latch levers 54 engageable with pins 55 on the member 32and cooperable with long teeth of the pinions 34 to prevent rotationthereof when these pinions are out of mesh with the transfer gears 48,as shown in Fig. 3. The yoke member 32 is additionally urged to swingupwardly by means of a tension spring 55' as shown in Fig. 1. 'I'herollers 35 carried by the yoke 31 through the shaft 36, are engageablewith all of the cam recesses 50 when the latter are brought into lateralalinement as shown in Fig. 2, and the yoke 31 has an integral endprojection 56 and is constantly urged to swing upwardly about its pivotshaft 3|, by means of a tension spring 51 connecting the swinging end ofthe yoke 31 with a fixed pin 59. The pinion supporting yoke 32, and theroller supporting yoke 31 are thus constantly urged toward the positionshown in Fig. 2, by the springs 53, 55', 51, respectively, when thecounter wheels 28, 3|| are being operated normally by the power driveshaft 2|.

My improved power trip which replaces the spring trips heretofore used,is shown in Fig. 5, and comprises a curved lever 59 pivotally suspendedfrom the end wall I9 of the main frame I8, by means of a pivot pin 69,the lever 59 having a lateral projection 6| extending through a slot inthe end wall I9 and adapted for attachment to a signal or othermechanism for indicating that the predetermined count has beencompleted. The lever 59 also has an upwardly projecting ear upon which alatch 62 is swingably suspended by a pivot pin 63, and the upper end ofthe latch 62 is connected by a tension spring 64 to a pin 65 carried bythe lever 59 near the pin 60. The lower swinging end of the latch 62 isadapted to be swung by the spring 64 toward the left as viewed in Fig.5, either against the lateral projection 56 of the roller supportingyoke 31, or against an extension of the pinion supporting shaft 3| whichis carried by the yoke member 32;

and this portion of the latch 62 has a ledge or' abutment 66 which isengageable by tripping projections or teeth 61 carried by the powerdrive shaft 2| when the rollers 35 engage all of the cam recesses 59.When this action takes place and the pinions 34 are in mesh with thetransfer gears 48, the roller yoke 31 will be swung upwardly by thespring 51 about the shaft 3| as in Fig. 2. During this upward swingingof the yoke 31, the integral projection 56 at the end of the yoke 31will move rearwardly from the position shown in Fig. 5 and will engagethe hump at the front part of the latch 62, and this movement of theprojection 56 will swing the latch about its pivot pin 631toward thedrive shaft 2|, thus enabling the revolving teeth 61 to engage theabutment 66 and to swing the curved trip or signal actuating lever 59upwardly so as to operate the signal.

In Figs. 15 and 16 I have illustrated an improved modified type of tripmechanism especially adapted for cooperation with an electric switch. Inthis modified assemblage, the curved lever 69 corresponds to the lever59 of the previously described trip, and is operable in precisely thesame manner. The lever 69 is swingably suspended from the end wall I9 ofthe frame I8 by a pivot pin 68, and La latch 62 is again suspended fromthe medial upper portion of the lever 69 by means of a pin 63 and isnormally urged toward the pinion shaft 3| by a spring 64. The latch 62of this modification also has an abutment 68 which is cooperable withteeth 61 carried by the drive shaft 2| when the latch is swung towardthe right from the position shown in Fig. 15, by a projection 56 carriedby the roller supporting yoke 31. The digit wheel supporting shaft 26 isprovided with an abutment 1I which is rotatable by the shaft 29 to theposition shown. A manually settable lever 12 is swingably supported uponthe drive shaft 2| and has a manipulating handle extending forwardlybeyond the frame I8, and this handle portion of the lever 12 has a notch13 which is adapted to coact with the abutment 1| carried by the shaft26, when the lever 69 is swung upwardly into the dot-and-dash positionof Fig. l5, thereby locking the shaft 26 against rotation. Another lever14 which is swingably suspended from the end wall I9 by a pivot screw15, has its forward end engageable with the upper medial portion of thelever 69; and this lever 14 has a rearward extension 16 while thesetting lever 12 has a rearward extension 11, between which a switchactuating arm 18 is constantly confined as clearly shown in Figs. 15 and16. 'I'he assemblage is obviously such that when the trip setting lever12 is positioned downwardly as shown in solid lines in Fig. 15, thespring 64 will then hold the latch 62 against the stop shaft 3| with theabutment 66 out of the path of revolution of the teeth 61, and theswitch arm 18 will be held in the position shown in Fig. 16 by theextensions 16, 11. The latch 62 may however be operated by movement ofthe yoke projection 56 as previously described, and when the lever 12 isswung so as to bring the notch 13 into engagement with the abutment 1I,the shaft 26 will be prevented from rotating in a clockwise direction asviewed in Fig. l5.

The electric switch of which the arm 18 constitutes a part, is mountedupon a panel 19 which may be secured to the frame I8 near the end wallI9, and comprises a contact carrier swingably suspended from the panel1'9 by a terminal pivot 8|; a toggle member 82 pivotally attached to thecarrier 80 by a pin 83 and swingably suspended from the panel 19 by apivot pin 84 which also serves as a pivotal support for the arm 18,' acoil spring connecting the arm 18 with a medial portion of the togglemember 82; stop pins 86 for limiting the swinging motion of the member82; and fixed terminals 81, 88 secured to the panel 19 and having fixedcontacts which are alternately cooperable with the movable contactscarried by the contact carrier 80. The pin 83 should preferably coactwith a slot in either the carrier 80 or in the member 82 in order tocompensate for lost motion during operation of the toggle formed by thecarrier 8U and member 82. It will be apparent that movement of theactuating arm 18 from one extreme position to the other, will cause thespring 85 to snap the toggle from one extreme position to the other, andthe terminals of the switch may obviously be connected to the signal orother mechanism for indicating completion of the predetermined count, ina wellknown manner. The entire counter astembly and switch mechanism ispreferably normally concealed within a suitable housing or coverdetachably secured to the base I8 and having a window opening throughwhich the numerals 5| 75 are visible, and the resetting shaft 23 ls alsoprovided with a handle or knob for facilitating resetting of the counterwheels 2l, 3l.

While the normal operation of the improved counter and trip mechanismswill be relatively apparent from the foregoing description of thedetails of construction, this normal operation will again be generallydescribed. As previously indicated, the improved counter assemblage isespecially adapted to effect true subtraction of a succession of unitsfrom a predetermined total number count, and both the mechanical tripand the electric signal switch are automatically operable by powerderived from the driving shaft 2|, when the predetermined count has beenattained. When the counter is to be used for this purpose, it is firstnecessary to set the individual counter wheels 23, 30 so as to presentthe selected total number through the window of the housing casing, andthis setting may be accomplished both by manually rotating the wheelsupporting shaft 26 and by rotation of the individual numeral bearingrims 38 relative to their transfer gears 43. The shaft 26 may be rotatedmanually so that all of the number wheels 2l, 30 will be rotated in adirection corresponding to that in which the wLsels travel during normalsubtraction counting. When the shaft 26 is thus manually rotated, thepawls 43 of the several number wheel assemplages will engage theV-groove 45 in the shaft, and will cause the inserts 4| to revolve. Thepawls 42 of the revolving inserts 4| will then engage the notches 44 ofthe numeral bearing rims 38 and will thus cause these rims to revolve incorresponding directions. The rims 3l may however be revolved manuallyabout their inserts 4| and independently of each other to thus permitinitial setting of the several numeral bearing rims 33 in any desiredposition.

After the counter assembly has been thus initially set or reset, to someselected number other than zero, the roller supporting yoke 31 will bepositioned so as to retain the integral end projection 53 thereof in theposition shown in Fig. 5, and the trip latch 62 and lever 5! will becorrespondingly positioned to permit free revolution of the teeth G1 onthe drive shaft 2|. Some of the rollers 35 will then ride on theperipheral surfaces of the rims 33, while others may be disposedadjacent to the cam recesses 5l of the corresponding rims, and thepinions 34 are normally in mesh with the transfer gears 4I. As the driveshaft 2| is rotated, rotary motion is transmitted therefrom through theworm 22 and worm wheel 24 to the transmission shaft 23, and from thisshaft through the worm 25 and worm wheel 21 to the transmission memberor clutch 23. The clutch 29 transmits constant rotary motion to thenumber wheel 28 of lowest order, and the rotary motion thereof isintermittently transferred from the transfer teeth 4l of each of thelower order number wheels through the intervening transfer pinions 34 tothe transfer gears 43 of the adjoining higher order wheels, whenever asubtraction of ten units is being completed by the adjoining lower orderwheel, This subtraction of units, tens, hundreds and thousands continuesuntil the total predetermined subtraction has been attained, whereuponall of the cam recesses 5l will be brought into lateral alinement witheach other and the rollers 35 enter the alined recesses. The yoke 3lwill then swing upwardly about the pinion shaft 3|, and the endprojection 56 thereof will swing the latch 52 rearwardly about itssuspension pin 63 thereby causing one of the constantly revolving teeth31 to engage the abutment 33 and to lift the trip lever Il thusactuating the signal or stopping the machine.

While the pinions 34 are normally in mesh with the transfer gears 4l,they may be disengaged from these gears so as to permit unrestrainedrotation of the rims 33 for quick presetting, by merely swinging theyoke 31 and the yoke member 32 downwardly to the position shown in Fig.3. The ngers l2 which are carried by the pinion supporting member 32,will then enter the notches 43 of the inserts 4I and will lock theinserts against rotation. With the inserts 4| thus positively locked,and the pinions 34 out of the path of revolution of the transfer teeth4l, the numeral bearing rims 3l may be freely revolved about theirinserts 4I; and when the yokes 31, 32 are again released. the pinions 34will be brought into mesh with the transfer gears 4l by the springs 53,55', 51. Itis also to be noted, that when the pinions 34 are disengagedfrom the teeth of the transfer gears 48 as above described, the levers54 lock the pinions 34 against possible rotation about the shaft 3|,thus always insuring proper intermeshing of the teeth when the pinions34 are elevated.

The normal operation of the electrical trip and switch mechanism shouldbe clearly apparent from the previous description, and the poweractuation of the trip mechanism by the teeth 61 of the drive shaft 2|,insures quick and positive action upon completion of the predeterminedcount. True subtraction is definitely assured by virtue of the improvedconstruction of the number wheels, and especially by virtue of the factthat the digit or numeral bearing rims 3l are formed integral with orare rigidly attached to the corresponding locking portions 39 andtransfer teeth 4|l. This provides a pomtive and definite relationshipbetween the numerals 5| and the transfer teeth 40, and does not permit arelative displacement of the numerals 5| and transfer teeth 4l as informer counting mechanisms of this type. The cam recesses l are alsodefinitely located with reference to the numerals thereby insuringpositive and quick actuation of the trip mechanism, when thepredetermined count has been attained. The improved number wheels aremoreover relatively simple and compact in construction and may bereadily manufactured, and the notches 43 in the inserts 4|, providesimple and effective means for locking these inserts againstdisplacement when the pinions 34 are disengaged from the transfer gears43.

From the foregoing specific description, it will be apparent that thepresent invention provides an improved counter which is simple, durableand compact in construction, and which is moreover capable of effectingrapid and accurate indication of the completion of any predeterminedcount. The improved mechanism is especially adapted to insure truesubtraction of successive units from a selected total, and is capable ofuse for diverse purposes, As previously indicated, an important'featureof my present invention is the rigid connection between the digitbearing rim 38 and its transfer teeth 40 in each counter unit; andanother important feature is the provision of a resetting pawl 43 whichis angularly adjustable about the axis of the shaft 26 and relative tothe corresponding digit rim 30 and transfer teeth 4l of each unit. WhileI have described the drive shaft 2| as being continuously rotatable,this shaft may in some cases be intermittently rotatable, or evenoscillatory, depending upon the nature of the counting operation. Theassemblage is not subject to interference with the accuracy of thecount, due to Vibration or jarring thereof, and may be convenientlyreset to any desired predetermined position.

It should be understood that it is not desired to limit the presentinvention to the exact details vof construction or to the precise modeof operation herein `shown and described, for various modificationswithin the scope of the claims may occur to persons skilled in the art.

I claim:-

1. In combination, a shaft, a series of counter wheels rotatablysupported by said shaft, each wheel having a digit rim and transferteeth at one end thereof, and each wheel having an insert within itsdigit rim and a transfer gear at the opposite end thereof, transferpinions each normally engaging a transfer gear of a higher order wheeland being engageable with the transfer teeth of the adjacent lower orderwheel, and means for effecting disengagement of said pinions from saidtransfer gears and for simultaneously locking said inserts againstdisplacement.

2. In combination, a series of counter wheels rotatable about a commonaxis, each wheel having a numeral bearing rim and transfer teeth formedintegral therewith, and each wheel having an insert Within its rim and atransfer gear connected thereto by ratchet gearing, transfer pinionseach normally engaging a transfer gear of a higher order wheel and beingengageable with the transfer teeth of a lower order wheel, and means foreffecting disengagement of said pinions from said transfer gears and forsimultaneously locking said inserts against rotation.

3. In combination, a series of counter wheels rotatable about a commonaxis, each Wheel having a numeral bearing rim and transfer teeth formedintegral therewith, and each wheel having an insert within its rim and atransfer gear connected thereto by ratchet gearing, transfer pinionseach normally engaging a transfer gear of a higher order wheel and beingengageable with the transfer teeth of a lower order wheel, means foreffecting disengagement of said pinions from said transfer gears and forsimultaneously locking said inserts against rotation, and means forlocking said pinions against rotation when disengaged from said transfergears.

4. In combination, a series of counter wheels rotatable about a commonaxis, each wheel having a numeral'bearing rim and transfer teeth rigidlyassociated with said rim, and each wheel havingan insert rotatable inone direction within its rim and a series of peripheral notches beyondsaid rim, a transfer gear connected to each insert by ratchet mechanism,transfer pinions each normally engaging a transfer gear of a higherorder wheel and being engageable with the transfer teeth of a lowerorder wheel, a support for said pinions movable to disengage saidpinions from said transfer gears, and means carried by said support andengageable with said notches to lock said inserts against rotation.

5. In a counter, a series of counter wheels rotatable about a commonaxis and each having a rim bearing numbers from zero to nine, transferteeth fixed to each rim in the same relationship to the same number ason all other rims of said series, an insert confined within each rim ofeach wheel and secured' thereto by one-way motion transmissionmechanism, a transfer gear connected to each insert by one-way motiontransmitting mechanism, and transfer pinions each normally engaging atransfer gear of a higher order wheel and engageable with transfer teethof a lower order wheel.

6. In a counter, a series of counter wheels normally rotatable about acommon shaft and each having a numeral bearing rim and transfer teethrigidly associated with said rim, an insert disposed within each of saidrims and having means for imparting rotary motion to the correspondingrim while permitting relative reverse rotation of the rim and insert,each insert also having means cooperable with said shaft for impartingrotation from said shaft to said insert and from said insert to its rimfor resetting purposes, and a transfer gear cooperating with each ofsaid inserts for normally rotating the rim and transfer teeth associatedtherewith about said shaft.

MARK M. HENNESSY.

